19009100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1571}}^1$

素因数の和:1607

約数の個数: 54

約数和(自身を含む): 45369492

約数和(自身を除く): 26360392

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 1571, 2420, 3025, 3142, 6050, 6284, 7855, 12100, 15710, 17281, 31420, 34562, 39275, 69124, 78550, 86405, 157100, 172810, 190091, 345620, 380182, 432025, 760364, 864050, 950455, 1728100, 1900910, 3801820, 4752275, 9504550, 19009100]

約数ペア:

[(1, 19009100), (2, 9504550), (4, 4752275), (5, 3801820), (10, 1900910), (11, 1728100), (20, 950455), (22, 864050), (25, 760364), (44, 432025), (50, 380182), (55, 345620), (100, 190091), (110, 172810), (121, 157100), (220, 86405), (242, 78550), (275, 69124), (484, 39275), (550, 34562), (605, 31420), (1100, 17281), (1210, 15710), (1571, 12100), (2420, 7855), (3025, 6284), (3142, 6050)]